UI Not being updated

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https://forum.snitz.com/forumTopic/Posts/68725?pagenum=1
06 November 2025, 06:42

Topic


sanyogtripathi
UI Not being updated
22 June 2009, 15:37


I want to write incoming and out going messages to the UI Form. But when i am calling BeginInvoke method. it is showing exception message
"Invoke or BeginInvoke cannot be called on a control until the window handle has been created."
and Invoke required method is not being set to true, which should be set when calling method from another thread. I am using following code. if (InvokeRequired)
{
object[] pList = { message };

Txt_RecievedFrmCOM.BeginInvoke(new WriteLineDelegate(WriteFix2), pList);
}
else
{
WriteFix2(message);
}
So can any one help me and let me know that how can i Update it to the textbox on UI Form. Thanks In Advance.......... Please reply........
<moved from="DEV Discussions (General)" />

 

Replies ...


Carefree
22 June 2009, 21:02


Originally posted by sanyogtripathi
I want to write incoming and out going messages to the UI Form. But when i am calling BeginInvoke method. it is showing exception message
"Invoke or BeginInvoke cannot be called on a control until the window handle has been created."
and Invoke required method is not being set to true, which should be set when calling method from another thread. I am using following code. if (InvokeRequired)
{
object[] pList = { message };

Txt_ReceivedFrmCOM.BeginInvoke(new WriteLineDelegate(WriteFix2), pList);
}
else
{
WriteFix2(message);
}
So can any one help me and let me know that how can i Update it to the textbox on UI Form. Thanks In Advance.......... Please reply........
<moved from="DEV Discussions (General)" />

Not familiar with the method, but you misspelled "received" and that may affect it.
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